Home / 142,828.92-197,100.72-79,166.16

Finding the Fourth Proportional to 142,828.92, 197,100.72 and 79,166.16

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Solution

The fourth proportional to 142,828.92, 197,100.72 and 79,166.16 is: 109,247.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,828.92 : 197,100.72 = 79,166.16 : x
  2. Step 2: Convert to fraction form
    142,828.92/197,100.72 = 79,166.16/x
  3. Step 3: Cross multiply
    142,828.92x = 197,100.72 × 79,166.16
  4. Step 4: Simplify right side
    142,828.92x = 15,603,707,135.64
  5. Step 5: Solve for x
    x = 15,603,707,135.64/142,828.92
  6. Step 6: Final answer
    x = 109,247.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.